Dan Adams, the co-founder and CEO of advanced industrial marketing (Aim), has conducted research on leadership practices during his tenure at Aim. Based on his research, they defined four types of leaders: Builders, remodellers, decorators, and realtors. Only 53% of senior leaders considered themselves builders while only 32% of the subordinates identified their senior leader as a builder in the companies which were surveyed. The companies being led by builders had a much higher expectation of future growth and a higher actual self-reported rate of growth. Adams mentioned that the first duty of a builder is to leave their business stronger than they found it. In 2005, Adams asked to be fired from his job after spending 29 years at the company he was working for. He eventually launched Aim and wrote his first book in 2008 called New Product Blueprinting.